Method and central control entity for controlling data plane flow of packet flow
A central control and data plane technology, applied in the direction of network data management, data exchange network, digital transmission system, etc., can solve the problems of edge routers and data plane scalability and overhead, router size change, inability to expand, etc.
Active Publication Date: 2017-03-15
TELEFON AB LM ERICSSON (PUBL)
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Problems solved by technology
However, while this simplifies the site itself, it introduces complexity to the router
Router platforms cannot accommodate processing-intensive functions, and router size has become an issue
Furthermore, scalability issues arise when data plane flows to be passed through data plane applications increase
[0009] Therefore, multiple data plane applications (such as image 3 shown) may be a short-term solution, but not scalable into the future, especially with the predicted increase in packet traffic
[0010] Increased demand for multiple data plane applications and increased mobile packet data traffic creates scalability and overhead issues for edge routers and data plane applications
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[0038] exist Figure 4 In, an embodiment of the present invention is disclosed, wherein routers in a radio access network part are converted into forwarding units, meaning they can be extended to have the capability of acting as forwarding units.
[0039] In the exemplary embodiment shown, these forwarding units FE 1 to FE 4 have reference numerals 120 to 124 . A central control entity 200 is provided to operate the forwarding units 120 to 124 remotely. exist Figure 4 In the illustrated embodiment, the H-RAN part of the access network is shown, however in conjunction with Figure 7 and 8 , shows the Low-RAN part of the access network, and can also be obtained from Figure 5 It is inferred that both parts are controlled by a single central control entity 200. A central control entity 200 controls data plane flows through forwarding units 121-124 arranged in a ring topology. The central control entity 200 also controls the data plane flow through the forwarding units arra...
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The invention relates to a central control entity (200) configured to control a data plane flow of data packet flows in a radio access network part of a mobile communication network. The central control entity (200) includes: an information detection unit (210) configured to detect and connect to a data plane application (41-44) of a forwarding unit (120-124; 131-134) attached to the radio access network part ), and is configured to detect information related to at least one data plane application (41‑44) to be applied to the data plane flow. In addition, the central control entity (200) includes: a control unit (230), configured to: determine the path of the data plane flow through the forwarding unit (120-124; 131-134) of the radio access network part, wherein, The control unit (230) is configured to: determine the path considering the at least one data plane application (41-44) to be applied to the data plane flow, the control unit (230) is also configured to: indicate that in the path The forwarding unit to which the at least one data plane application is attached passes the data plane flow through the at least one data plane application (41-44).
Description
technical field [0001] The invention relates to a central control entity configured to control a mobile communication network, a method for controlling a data plane flow by the central control entity, and a forwarding element of a radio access network part forwarding the data plane flow Data plane flow of packet flow in the radio access network part. Background technique [0002] Today's mobile backhaul (MBH) network / radio access network is usually structured in two parts, the High-RAN (Radio Access Network) part and the Low-RAN part, to provide connectivity and connectivity for mobile packet data from cell sites to the core network Business collection. available from figure 1 As seen in , the High-RAN part generally uses a ring topology with network nodes 20 to 24, while the Low-RAN part uses a tree structure with network nodes 31 to 34. The cell site is connected to the Low-RAN. Low-RAN generally uses a microwave link connected to the access branch of the High-RAN ring...
Claims
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IPC IPC(8): H04L12/701H04L12/717H04L45/42
CPCH04L45/64H04L45/42H04W8/04
Inventor 德尔克·坎帕曼斯里尼瓦桑·卡达巴安德雷斯·威策尔
Owner TELEFON AB LM ERICSSON (PUBL)